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Dynamical modeling of the C iv broad line region of the z=2.805 multiply imaged quasar SDSS J2222+2745
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dc.contributor.author | Williams, Peter R. | |
dc.contributor.author | Treu, Tommaso | |
dc.contributor.author | Dahle, Håkon | |
dc.contributor.author | Valenti, Stefano | |
dc.contributor.author | Abramson, Louis | |
dc.contributor.author | Barth, Aaron J. | |
dc.contributor.author | Brewer, Brendon J. | |
dc.contributor.author | Dyrland, Karianne | |
dc.contributor.author | Gladders, Michael | |
dc.contributor.author | Horne, Keith | |
dc.contributor.author | Sharon, Keren | |
dc.date.accessioned | 2022-06-29T23:38:43Z | |
dc.date.available | 2022-06-29T23:38:43Z | |
dc.date.issued | 2021-06-30 | |
dc.identifier | 275079248 | |
dc.identifier | e59cc63d-dc4b-43b3-acfb-296ae1db68e0 | |
dc.identifier | 000668331600001 | |
dc.identifier | 85109635715 | |
dc.identifier.citation | Williams , P R , Treu , T , Dahle , H , Valenti , S , Abramson , L , Barth , A J , Brewer , B J , Dyrland , K , Gladders , M , Horne , K & Sharon , K 2021 , ' Dynamical modeling of the C iv broad line region of the z =2.805 multiply imaged quasar SDSS J2222+2745 ' , Astrophysical Journal Letters , vol. 915 , no. 1 . https://doi.org/10.3847/2041-8213/ac081b | en |
dc.identifier.issn | 2041-8205 | |
dc.identifier.other | RIS: urn:67A69310675C481F94804761570AB19A | |
dc.identifier.uri | https://hdl.handle.net/10023/25584 | |
dc.description | P.W. and T.T. gratefully acknowledge support by the National Science Foundation through grant AST-1907208 "Collaborative Research: Establishing the foundations of black hole mass measurements of AGN across cosmic time" and by the Packard Foundation through a Packard Research Fellowship to T.T. Research at UC Irvine was supported by NSF grant AST-1907290. K.H. acknowledges support from STFC grant ST/R000824/1. | en |
dc.description.abstract | We present the first ever models of a broad line region (BLR) at the peak of active galactic nucleus (AGN) activity using the multiply imaged z = 2.805 quasar SDSS J2222+2745. The modeled data consist of monthly spectra covering the broad C IV emission line over a 5.3 yr baseline. The models suggest a thick disk BLR that is inclined by degrees 40 degrees to the observer's line of sight and with an emissivity weighted median radius of = rmedian = 33.0(-2.1)(+2.44) light days. The kinematics are dominated by near-circular Keplerian motion with the remainder inflowing. The restframe lag one would measure from the models is taumedian = 36.4(-1.8)(+1.8) days, which is consistent with measurements based on cross-correlation. We show a possible geometry and transfer function based on the model fits and find that the model-produced velocity-resolved lags are consistent with those from cross-correlation. We measure a black hole mass of log10(MBH/M⊙) = 8.31(-0.06)(+0.07), which requires a scale factor of log10 (fmean,σ) = 0.20(-0.07)(+0.09.). This is the most precise MBH measurement for any AGN at cosmological distances and it demonstrates that the precision required for BH-host coevolution studies is attainable. | |
dc.format.extent | 6 | |
dc.format.extent | 1130160 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal Letters | en |
dc.subject | Strong gravitional lensing | en |
dc.subject | Active galactic nuclei | en |
dc.subject | Supermassive black holes | en |
dc.subject | Quasars | en |
dc.subject | Astronomy data modelling | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Dynamical modeling of the C iv broad line region of the z=2.805 multiply imaged quasar SDSS J2222+2745 | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.3847/2041-8213/ac081b | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2022-06-30 | |
dc.identifier.grantnumber | ST/R00824/1 | en |
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